I shoot up my self defense ammo on my birthday every year, replenish with new ammo and shoot one magazine full of the new ammo to make sure it feeds properly. I generally unload the SD ammo and test my magazines with target ammo (FMJ ball) once a month; usually the 3rd Monday. If the magazines are operating properly, I use them until they aren't.
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A man can never have too much red wine, too many books, or too much ammunition.
-Rudyard Kipling-
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